Commenced in January 2007
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A Robust Frequency Offset Estimation Scheme for OFDM System with Cyclic Delay Diversity

Authors: Young-Hwan You, Won-Jae Shin


Cyclic delay diversity (CDD) is a simple technique to intentionally increase frequency selectivity of channels for orthogonal frequency division multiplexing (OFDM).This paper proposes a residual carrier frequency offset (RFO) estimation scheme for OFDMbased broadcasting system using CDD. In order to improve the RFO estimation, this paper addresses a decision scheme of the amount of cyclic delay and pilot pattern used to estimate the RFO. By computer simulation, the proposed estimator is shown to benefit form propoerly chosen delay parameter and perform robustly.

Keywords: OFDM, Synchronization, cyclic delay diversity, FM system

Digital Object Identifier (DOI):

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